Machine for treating hides and skins.



No. 830,571. PATBNTED SEPT. 11, 1906.

a H. S. GORWIN. MACHINE FOR TREATING HIDES AND SKINS. APPLICATION FILED JAN 21, 1904 Inuezazfar rum NORRIS FTER$ ca wAsnmnroN, n. c

UNITED STATES PATENT OFFICE.

HAMILTON S. CORWIN, OF PEABODY, MASSACHUSETTS, ASSIGNOR, BY

MESNE ASSIGNMENTS, TO THE TURNER TANNING MACHINERY COM- PANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MAINE.

MACHINE FOR TREATING HIDES AND SKINS.

Patented Sept. 11, 1906.

' Application filed January 21, 1904. Serial No=189.967.

To all whom, it may concern:

Be it known that I, HAMILTON S. CoRwIN, a citizen of the United States, residing in Peabody, county of Essex, and State of Massachusetts, have invented an Improvement in Machines for Treating Hides and Skins, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates to a machine for treatinghides, skins, and leather, and is an improvement upon the machine shown and described in United States Patent No. 746,144, dated December 8, 1903, to which reference may be had.

In the machine referred to the hide or skin is placed over a yielding member of a carrier which-is laterally movable with relation to the path of movement of the table or su port, and while on said yielding member said hide or skin is acted upon by an operating tool orroll, which treats the said hide or skin intermediate its ends before it is engaged by the table or support, which latter is moved upward in a substantially vertical path.

The present invention has for its object to insure proper treatment of the hide or skin by the operating-tool while on the carrier and prevent the operating-tool pulling or dragging the hide or skin over the supporting member of said carrier, which if permitted to take place might bring an untreated portion of the hide or skin into the path of movement of the table, so that when the latter in its upward movement lifted the hide or skin from the carrier an untreated portion of the hide or skin might lie over the upper edge of the table and be thereby placed in a position where it would not be treated by the rolls or tools employed for treating the portions of the hide or skin lying against the sides of the table. To this end I employ a clamping device or mechanism which cooperates with the hide-su porting member of the carrier, so as to firm y engage and clamp the hide or skin to said member while said hide or skin is being treated by the roll or tool which acts upon it while on said carrier, and I prefer to operate said clamp to engage the hide or skin by the, carrier itself, as will be described. These and other features of this invention will be pointed out in the claim at the end of this specification.

Figure 1 is a side elevation of a suflicient portion of a machine embodying this invention to enable it to be understood, and Fig. 2 a front elevation of the parts shown in Fig. 1.

In the present instance I have shown only a portion of the machine illustrated in the patent referred to, inasmuch as the present invention is applicable to the machine constructed as shown in the said patent, and to enable the parts to be readily distinguished I have chosen to employ the same letters and numerals to designate the same parts of the machine'as are used in the patent.

Referring to the drawings, 12 represents the yielding member of the carrier mounted upon the ro'ckshaft 80, supported in the side frames 13 of said carrier and provided at its opposite ends with cranks or arms 81, which project over the side frames 13 and are engaged by the springs 15, which normally force the cranks upward until arrested by the nut 82 on the end of a screw or bolt 16. The sideframes 13 slide on the tracks or ways 14, secured to the side framesi j of the machine, and have secured to them the substantially V-shaped stationary member 10 of the carrier, which latter is provided with the arms 38, carrying rollers 39, which engage cam-grooves 40 in the sides of disks 41, mounted on the shaft 42, provided with the gear 43, which meshes with and is driven by the gear or pinion 44 on the shaft of the sprocket-wheel d, about which is passed the link chain 5, constitutin part of the endless carrier to which the tabTe or support a is attached so as to move in an endless path, the table a, (indicated by dotted lines in Fig. 1) passing up be tween the members 10 12 of the carrier, so as to lift the hide or skin 90 from the carrier and bring it into position to be treated by the tools or rolls n 10, mounted in the hangers 30 31. The hide or skin 90 while on the carrier is acted upon by the rotatable roll or tool q, and to prevent the said tool or roll dragging or pulling the hide or skin over the edge of the member 12 I have provided a clamp whichcooperates with the member 12 and serves to secure the hide or skin thereon against movement under the influence of the roll g. The clamp may and preferably will be made as herein shown and consists of a bar 100, extended transversely of the machine and preferably concaved to cooperate with the convex or rounded end or edge of the member 12. v

The bar 100 is secured tosuitable supports, shown as elbow-levers 101, one at each end of said bar, which levers are pivoted to lugs 103, attached to the side frames i y' of the machine. Each elbow-lever 101 is provided, as herein shown, with. a toothed segment 104, which meshes with a toothed segment 105 on the end of an upright lever106, pivoted to a lug 107 of the machine and having its lower,

; end projected into the path of movement of the carrier, so that at the proper time, as will be described, the clamp may be engaged withthe hide or skin on the yielding member 12.

I may prefer to provide for a yielding engagement of the clamp with the-hide or skin on the member 12, and this may be effected, asherein shown, by means of a helical spring 109, encircling a bolt 110 between a crossbar 112 and the lever 106, the said bolt being extended through said lever and provided with a nut 113, by means of which the power of the spring may be regulated.

Thelevers 106 may be actuated by lugs, projections, or arms 115, extended from the side frames 13 of the carrier.

In operation the clamp 100 is normally disengaged from the member 12, and the latter and its carrier are free to be moved by the cams in the direction indicated by the arrows 70, so as to enable the operator to place a hide or skin over the member 12 and preferably so that substantially the central portion of the hide or skin is between the member 12 and the member 10 of the carrier, which latter is then moved in the direction opposite to that indicated by the arrow by the cams, and the portion of the hide or skin resting against the inner surface of the member 12 is engaged with the operating tool or roll 9, which treats or works the portion of the hide or skin between it and the roll g, as represented in Fig. 1. At or'about the time the hide or skin on the member 12 has been brought into engagement with the operating tool or roll 9 the In or arm 115on the carrier engages the cross ar 112 and turns the lever 106, so as to lower the clamping-bar 100 and bringit into engagement with the hide or skin on the member 12 thereby firmly skin by said roll or tool.

clamping said hide or skin on said member and preventing the hide or skin from being dragged or drawn over the upper edge or end of the member 12 by the roll or tool thus insuring effective treatment of the hide or After the roll g has performed its work the carrier is moved in the direction indicated by the arrow 70', and

the treated portion of the hide or skin is moved across the path of movement of the table a, which on its upward movement 1s brought into engagement with the under surface of the hide or skin, the'said table passing between the members 10 12 and engaging the hide or skin, so that the portion treated by the roll g lies over or on the edge of the table a and extends on both sides a sufficient distance to be engaged by the rolls n 10. As the carrier moves in the directionindicated by the arrow 70 the pressure upon the levers 106 is relieved, and the clamping-bar is moved away from the member 12- and the hide or skin is released, so that it can be lifted from the carrier by the table a.

The clampingbar 100 maybe moved away from the member 12 by the table a or in any other suitable manner.

I have herein shown one construction of clamp and mechanism for operating it; but I do not desire to limit my invention to the particular construction shown.

I claim In a machine of the character described, in combination, a table orwork support, means to move it, a carrier for a hide or skin movable toward the path in which said table is moved to place the hide or skin into position to be removed from said carrier, means for treating the hide or skin while on said carrier, means for treating the hide or skin while on said table, a clamping-bar cooperating with said carrier, pivoted supports for said clamping-bar, levers for moving said supports, and means movable with said car rier for actuating said levers, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HAMILTON S. OORWIN.

Witnesses:

JAS. H. CHURCHILL, J. MURPHY. 

